Mechanical movement



March '23., 1926. 1,577,710 M. GOLDBERGER MECHANICAL MoyEMET orig-inn FugaFeb. 5, 1921 It is formed with a hub 14 to which the shaft 11 may be attached in any suitable or preferred way. So far as the essence of the invention is concerned the unit may be of other form and said unit may be otherwise connected to the part to be operated thereby. The center 21 of the said unit is at the intersection of the axis of the hub 14 and the plane of the base 15 of the unit, which said base is disposed in a plane at a right angle to the axis of said hub. The said unit 13 being pinned or otherwise non-rotatively fixed to the shaft 11 becomes, in a broad sense, part of the driven element and is formed for operative connection to parts on the driving element, as will hereinafter appear.

The shell of said unit is provided with a plurality of angularly spaced, elongated, driving` recesses 16 which open through the base or rim 15 and extend principally throughout the semispherical portion thereof. The said unit is also provided with an equal number of intervening wider, but shallower, notches 17 having curved, upper walls and which also open through the base 15. Said notches 17 are located equidistantly between adjacent recesses 16. The number of said recesses and also the number of said notches will depend upon the extent or angular movement or increment to be given to the intermittently driven member in keach operation. As herein shown, eight of said recesses 16 are provided, spaced at 45 apart.

Fixed to the end of the driving shaft 10, adjacent to the unit 18 is a member 1S which is provided with a crank arm 19 that is disposed at an oblique angle to the axis of said shaft 10. Said crank arm carries at its outer end a stud 20 disposed at an obliqueV angle to said arm, and whose axis is radial to the center 21. Said stud carries an antifriction roller 22 that is held on the stud between the arm 19 and a head 23 on the inner end of the stud.

By reference to Figure 1, it will be noted that the axis of the driving shaft 10 is in the plane of the base 15 of the unit and, therefore, is radial with respect to said center 21. Thus, both the axes of the said driving shaft 10 and the stud 2O are radial to said center.

This angular relation of the stud 20 relatively to the center 21 and to the axis of the driving element or shaft 10 is such that during one half of the rotation of the driving shaft 10 the axis of the stud passes from the plane of the base 15, as indicated in full lines in Figure 5, upwardly into one of the recesses 16 and thence to said base through the same recess, with the recess engaged by said stud moved an angular distance of 45o in the direction indicated by the arrow in said Figure 5. It will be observed that throughout the full travel of the stud 20, into and out of the driving recess 16 the stud remains at a constantly fixed distance from the center 21, so that the effective length of the lever arm of the driving element on the driven element remains constant.

The said member 18 at the inner end of the driving shaft 10 is formed with a part cylindric faced locking extension 24, said face being concentric to the axis of the driving shaft 10. Said extension projects inwardly beyond the inner side of the crank arm 19 for engagement with the locking notches 17. 1n the part of said extension on the side thereof remote from its parts of cylindric or convex locking face it is formed with a concave relief surface 25. The convex side of said locking extension extends throughout 180o of a circle and is adapted for locking engagement with the walls of a shallow locking` notch 17 of the unit 13 at a time when the bearing stud 20 and its roller 23 are moving through an arc of travel exterior to and out of contact with the walls of recesses 16, and, therefore, during the Y.

time when the stud and roller are passing from one said recess 16 to the next adjacent recess. The circumferential length of the convex face of the locking stud is such as to maintain its locking engagement with the walls of the locking notches 17 during the entire period while the roller bearing crank stud is passing from the open end 15 of one recess 16 to the open end of the next adjacent recess 16. This condition is brought about by the fact that the convex locking face of the extension 24 is concentric to the axis of the driving -shaft 10 and also that said axis of the shaft lies in the same plane, as clearly indicated in Figure 5. The cut away portion of the locking extension, indicated by the concave line provides clearance between said extension and the base 15 of the unit 13 while the driving stud 20l is moving through the operative part of its are of travel to give intermittentangular movement to the driven part- By reason of the fact that the axes of both the driving shaft 10 and the. stud 2O are radial to the center 21 of the unit 13, and of the fact that the convex locking face of the extension 24 is moving out of a locking engagement with the wall of a notch 1? when the bearing roller 22 of the stud 20 is moving into an adjacent driving recess 16, there is no lost motion effected in transmitting driving movement from the driving shaft 10 to the driven shaft or element. Therefore, the crank stud 2O is active throughout 180o of a circle to drive the` driven element with uniform accelerations and decelerations of movement. This uniform acceleration and deceleration of movement has the effect of giving to the driven part a highly smooth action and avoids jars and shocks being thrown on the parts of the movement and on the parts of the mecha- Cil nism 4which it intermittently drives. Also the parts which are intermittently rotated pass from a state of rest lto movement -gently and likewise pass from a state of movement to rest. A practical advantage of this in* termittent driving motion, when used in` ting the machine to be operated with a maxi-v mum permissible capacity. This will be made clear by a. consideration of the fact that such uniform acceleration and deceleration` of movement and lack of sudden starting and stopping of the intermittently movable container holders enables said holders to be practically moved Iat relatively high speed, and this condition increases the capacit-y of tliemachine. In yotherwords, the arrangement shown admits of .the holders of the circular series thereof to be placed closer together, so that thereby a greater number of containers can be filled in a given time, as compared to an arrangement wherein the acceleration and deceleration is not uniform and wherein the containers are started and stopped more abruptly in the intermittent movements ther'eof.

An important advantage of the locking device shown, wherein the locking extension is a rigid or unitary part of the driving crank, is that I am able to produce exact registration between parts carried by the inteiinittently driven part and stationary parts with which they are adapted to coact, and to hold said parts in such registration during the idle period of the driven part. Furthermore, the coacting parts of lock are formed on elements which can be made amply strong and massive to hold the driven part and mechanism operated thereby accurately in such alignment.

Another general advantage of the construction shown in respect of whatever kind of machine in which it may be embodied, is that mechanical shocks between the driving and driven elements are, to a maximum extent, reduced, thereby lessening wear on the contacting and bearing parts of the driving and driven elements, due to large accelerations and decelerations of movement from rest to speed and speed to rest, found in mechanical movements heretofore known.

i claim as my invention:

l. A mechanical movement comprising a continuously rotative drivingand an intermittently rotative driven element, said driven element embracing a unit having a series of angularly spaced driving recesses, and the said driving element having a crank stud to engage said recesses, the axes of said driving element and stud being radial to and intersecting the axis of the driven unit, which is in the plane of the open ends of said recesses. y

2. A mechanical movement comprising a continuously rotative driving and an intermittently rotative driven element, said driven eleine'nthaving a spherical segment formation and a base, and whose center is at said base, and provided with driving recesses concentric to said center and opening through said base, and said driving element having a crank stud to traverse said driving recesses, and arranged to be at all times a constant distance from said center.

3.`A mechanical movement comprising a continuously rotative driving and an intermittently rotative driven element, Vsaid driven element having a spherical segment formation and a base, andwhose center is at said base, and provided with angularly spaced Idrivingrecesses concentric to said center and opening throughy said base, and said driving element having a crank stud whose axis is oblique to the axis of said driving element to traverse said driving re-v cesses, the axes of the driving element and stud being radial to and intersecting said center.

la A mechanical movement comprising" a continuously rotative driving and an intermittently rotative driven element, said driven element having a spherical segment formation and a base, and whose center is at said base, and provided with driving recesses concentric to said center and opening through said base and provided between said recesses with locking notches, and said driving element having a crank stud to traverse said driving recesses, the axes of the driving element and stud being radial to and intersecting said center, and the driving element having a locking extension adapted to r0- tatively engage said notches when said driving' stud is traveling exterior to said driving recesses.

5. A mechanical movement comprising a continuously rotative driving and an inter-` mittently rotative Idriven element having a rim, the latter concentric to its axis `of rotation and formed with angularly spaced driving reces-ses which open through said rim, said driving elem-ent having its axis lying .in the plane of said rim and having an oblique driving pin to traverse said recesses, the axis of said pin intersecting the axis of said driving element Vat the center of the driven element.`

6. A mechanical movement comprising a continuously rotative driving and an intermittently rotative driven element, the latter embracing a rim concentric to its axis of rotation and formed with angularly spaced driving recesses and intermediate said driving recesses with shallow part cylindric locking notches all of which open through said rim, said driving element hav ing an oblique driving pin to traverse said recesses, whose axis intersects the axis of said driving element at the center of the driven element and in the plane of the rim, and said driving element having an eXtension formed with a hal-f cylindric face to engage said notches when said pin is released from said driving recesses.

7. A mechanical movement comprising a continuously rotative driving and an inter mittently rotative driven element7 the latter embracing a rim concentric to its axis of rotation and formed with angnlarly spaced driving recesses and intermediate said driving recesses with shallow part cylindric locking notches all of Which open through the said rim7 said driving element having an oblique driving pin to traverse said recesses, Whose axis intersects the axis of said driving element at the center of the driven element and co-incident with the plane of said rim, and said driving element having an eXtension formed With a part cylindric face to engage said notches when said pin is releasedlirom said driving recesses.

' 8. A mechanical movement comprising a continuousl)7 rotative driving and an intermittently rotative driven element, the latter embracing a rim concentric to its axis of rotation and formed with angularly spaced drivingrecesses which open through said rim, said driving element having a stud to traverse said recesses, said stud being displaced from the axis of rotation or said driving element, the axis of said driving shaft being in the plane of said rim.

9. A mechanical movement comprising a continuously rotative driving and an intermittently rotative driven element, the latter embracing a rim concentric to its axis of rotation and formed with angularly spaced driving recesses which open through said rim, said driving element having a stud to traverse said recesses, said stud being displaced from the axis of rotation of said driving element, the axis of said driving shaft being in the plane of said rim, said rim being provided intermediate said re cesses with part cylindrie locking notches and the driving element having a locking eX- tension formed on one side with a part cylindrie face concentric With said latter element to engage a locking notch when said stud is released from a driving recess.

In Witness whereof I claim the foregoing as my invention, I hereunto append my signature this 28 day of February, 1922.

MORRIS GOLDBERGER- 

